Zobrazeno 1 - 10
of 57
pro vyhledávání: '"Mark V. Trevorrow"'
Autor:
Mark V. Trevorrow
Publikováno v:
The Journal of the Acoustical Society of America. 149:2270-2282
This work examines ship underwater acoustic signature amplitude statistics and statistical distributions and explores the hypothesis that ship signatures exhibit amplitude fluctuations that are different from Rayleigh-distributed ambient ocean noise.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8237ebbabd5d866e8bb560f9ece6c0af
https://doi.org/10.1121/10.0004132
https://doi.org/10.1121/10.0004132
Autor:
Chunsheng Liu, Mark V. Trevorrow
Publikováno v:
Volume 3, Rapid Fire Interactive Presentations: Advances in Control Systems; Advances in Robotics and Mechatronics; Automotive and Transportation Systems; Motion Planning and Trajectory Tracking; Soft Mechatronic Actuators and Sensors; Unmanned Ground and Aerial Vehicles.
This paper focuses on the problem of multiple slow moving and less maneuverable evaders against an agile pursuer, addressing the optimal strategy for multiple evaders. This is the so-called wolf-sheep game. Two scenarios are examined: 1) both pursuer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56e4fa5b312bbda768c15db79ed2faac
https://doi.org/10.1115/dscc2019-8924
https://doi.org/10.1115/dscc2019-8924
Autor:
Mark V. Trevorrow
Publikováno v:
The Journal of the Acoustical Society of America. 145(4)
Sea-surface reverberation, and in particular backscatter from near-surface bubbles, can significantly limit high-frequency (>10 kHz) active sonar performance. While accepted models for near-surface bubble backscatter exist, these have generally assum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::05cbd45d950199f89bc6b3d6bbd33616
https://pubmed.ncbi.nlm.nih.gov/31046347
https://pubmed.ncbi.nlm.nih.gov/31046347
Publikováno v:
Journal of Plankton Research
Zooplankton in the ocean respond to visual and hydro-mechanical cues such as small-scale shear in turbulent flow. In addition, they form strong aggregations where currents intersect sloping bottoms. Strong and predictable tidal currents over a sill i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c7866054ef243f0b273918f12b340952
https://doi.org/10.1093/plankt/fbr074
https://doi.org/10.1093/plankt/fbr074
Autor:
Mark V. Trevorrow
Publikováno v:
The Journal of the Acoustical Society of America. 144:1688-1688
Sea-surface reverberation and, in particular, near-surface bubble backscatter, can pose a strong limitation on HF sonar performance. Recent high-frequency obstacle-avoidance sonar measurements showed significant variability in low grazing angle sea-s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cada05f2c990e803902e004c732a261
https://doi.org/10.1121/1.5067504
https://doi.org/10.1121/1.5067504
Publikováno v:
The Journal of the Acoustical Society of America. 124:767-778
This work examines underwater source spectra of a small (560 tons, 40 m length), single-screw oceanographic vessel, focusing on directionality and effects of maneuvers. The measurements utilized a set of four, self-contained buoys with GPS positionin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f82da88a45e2d9f671580ac84a3d32fa
https://doi.org/10.1121/1.2939128
https://doi.org/10.1121/1.2939128
Publikováno v:
The Journal of the Acoustical Society of America. 117:3574-3588
An investigation of midwater zooplankton aggregations in a coastal fjord was conducted in November 2002. This study focused on quantitative comparisons between a calibrated, three-frequency (38, 120, and 200 kHz) vessel-based echo-sounder, a multinet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6b0cd4a2f5b6a8ad4af39dba4896a41e
https://doi.org/10.1121/1.1920087
https://doi.org/10.1121/1.1920087
Autor:
Mark V. Trevorrow
Publikováno v:
Acoustics Research Letters Online. 6:1-6
Calibrated echo-sounder surveys were conducted on the backscatter from turbulent microstructure within internal lee-waves at a sill in Knight Inlet, B.C. Volumetric scatter strengths in the range −90 to −75 dB (re 1 m−1) were observed within na
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7426e283513ce06add290f4038163ebf
https://doi.org/10.1121/1.1809151
https://doi.org/10.1121/1.1809151
Autor:
Mark V. Trevorrow
Publikováno v:
The Journal of the Acoustical Society of America. 141:3546-3546
In the early 1990s, the acoustical oceanography research group, led by Dr. David Farmer, developed several high-frequency sonar platforms for near-surface oceanography. These platforms, suspended approximately 25 m below the surface, typically suppor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd93975877b0404813b89580d39be8a3
https://doi.org/10.1121/1.4987503
https://doi.org/10.1121/1.4987503
Autor:
Mark V. Trevorrow
Publikováno v:
Fisheries Research. 50:221-234
A towed 330 kHz sector scanning sonar was evaluated for surveys of near-surface migratory salmonids (Oncorhynchus sp.) and other fish in the Strait of Georgia near the mouth of the Fraser River near Vancouver, BC (Canada). Detection of large near-sur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1128541753d92b1ffd141aa96b11b0b7
https://doi.org/10.1016/s0165-7836(00)00214-9
https://doi.org/10.1016/s0165-7836(00)00214-9